Home / 7,790.25-11,690.04-2,860.39

Finding the Fourth Proportional to 7,790.25, 11,690.04 and 2,860.39

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Solution

The fourth proportional to 7,790.25, 11,690.04 and 2,860.39 is: 4,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.25 : 11,690.04 = 2,860.39 : x
  2. Step 2: Convert to fraction form
    7,790.25/11,690.04 = 2,860.39/x
  3. Step 3: Cross multiply
    7,790.25x = 11,690.04 × 2,860.39
  4. Step 4: Simplify right side
    7,790.25x = 33,438,073.52
  5. Step 5: Solve for x
    x = 33,438,073.52/7,790.25
  6. Step 6: Final answer
    x = 4,292.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.